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    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
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    <!--<table>
        <tr>
            <td>1</td>
            <td>2</td>
            <td>3</td>
        </tr>
        <tr>
            <td>a</td>
            <td>b</td>
            <td>c</td>
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        <tr>
            <td>d</td>
            <td>e</td>
            <td>f</td>
        </tr>
    </table>-->
<!--表格属性-->
    <table border="1" width="400px" height="200px">
        <tr>
            <td>data</td>
            <td>data</td>
            <td>data</td>
        </tr>
        <tr>
            <td>data</td>
            <td>data</td>
            <td>data</td>
        </tr>
        <tr>
            <td>data</td>
            <td>data</td>
            <td>data</td>
        </tr>
    </table>

    <p>水平合并 colspan="" ：保留左边,删除右边</p>
    <p>垂直合并 rowspan="" ：保留上边，删除下边</p>
    <p>水平和垂直合并 colspan="" rowspan="" : 保留左上，删除其他 </p>

<table border="1" width="600px" height="500px">
    <tr>
        <td>1</td>
        <td>2</td>
        <td>3</td>
        <td>4</td>
        <td>5</td>
    </tr>
    <tr>
        <td colspan="2">6,7</td>
        
        <td>8</td>
        <td>9</td>
        <td rowspan="2">10,15</td>
    </tr>
    <tr>
        <td>11</td>
        <td>12</td>
        <td>13</td>
        <td>14</td>
        
    </tr>
    <tr>
        <td colspan="2" rowspan="2">16,17,21,22</td>
        
        <td>18</td>
        <td>19</td>
        <td>20</td>
    </tr>
    <tr>
        
        
        <td>23</td>
        <td>24</td>
        <td>25</td>
    </tr>
</table>

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